US2420639A

US2420639A - Chart for weighing scales

Info

Publication number: US2420639A
Application number: US472827A
Authority: US
Inventors: Leonard Henry Kendall
Original assignee: Toledo Scale Corp
Current assignee: Toledo Scale Corp
Priority date: 1943-01-19
Filing date: 1943-01-19
Publication date: 1947-05-13
Anticipated expiration: 1964-05-13

Description

y 1947- H. K. LEONARD CHART FOR WEIGHING SCALES Filed Jan. 19, 1943 2 Sheets-Sheet l Hen/"y hendafl Lea/10rd I N VE NTOR.

y 1947- H. K. LEONARD 2,420,639

CHART FOR WEIGHING SCALES Filed Jan. 19, 1943 2 Sheets-Sheet 2 Leona/"d IN VENT OR.

TIORNEYS Patented May 13, 1947 CHART FUR WEIGHING SCALES Henry to Toledo Scale Company, Toledo,

poration of New Jersey Application January 19, 1943, Serial No. 472,827

3 Claims.

This invention relates to charts for weighing scales and more particularly to the provision of a standard chart assemblage for use in various types and styles of so-called cylindef weighing scales.

In this type of weighing scale the chart is made up of a cylindrically shaped sheet of indicia bearing material and is rotated on its longitudinal axis in response to the forces exerted by loads weighed on the scale. Different styles of cylinder scales have been constructed for use on different height counters; for example, a box scale may be employed on a low or medium height counter, a short column scale may be employed on a medium height counter and a tall column scale may be employed on a low or medium height counter. In addition to the general styles mentioned, it may be desirable in some instances to vary the direction from which the scale can be read in order to accommodate it to the height of a counter or fioor level in the store where it is used.

Because weight indications must be provided both for the merchant using the scale and for the customer, two series of weight indicia must be provided, one of which is visible from each side of the weighing scale. This further increases the variations in charts which may have to be con structed because it may be that the reading level on one side of the scale is different from that on the other side of the scale.

It has been necessary for Weighing scale man ufacturers to construct charts for each of the possible variations in style of the cylinder scales which they sold. This has required not only extra manufacturing facilities but also has increased the storage and stock keeping difiiculties. Coupled with these problems has been the necessity of designing charts to meet each condition.

It is an object of this invention to provide a chart assemblage for a cylinder scale which can be modified at will for use in different styles and types of cylinder scales.

More specific objects and advantages are apparent from the description, in which reference is had to the accompanying drawings illustrating preferred forms of chart assemblage embodying the invention.

In the drawings:

Figs. 1, II and III are simplified end elevations of; three different types of cylinder scales, showing the sighting lines for each, which may advantageously be equipped with charts employing the invention.

Kendall Leonard, Albany, N. Y., assignor Ohio, a cor- Figs. IV and V are fragmentary views in elevation of two different locations for the customers weight indication.

Fig. VI is a View in elevation on an enlarged scale of a chart adapted to be employed with the customers indication illustrated in Fig. IV.

Figs. VII and VIII are views in elevation of two further modifications of the invention being adapted to be employed with the customers indication illustrated in Fig. V.

Fig. IX is a greatly enlarged. vertical sectional View illustrating one form of chart construction and taken from the position indicated by the line IX--IX in Fig. VI and the line IX-IX in Fig. VII.

Fig. X is a vertical sectional view taken substantially on the line X- -X of Fig. IX of the modification of the invention shown in Fig. VI.

Fig. XI is a View similar to Fig. X but of the modification of the invention shown in Fig. VII.

Fig. XII is a vertical sectional view taken substantially on the line XII-XII of Fig. VIII.

Fig. XIII is a still further enlarged fragmen tary sectional view taken substantially on the line XIII-XIII of Fig. VIII.

Fig. IHV is a fragmentary view in elevation taken from the position indicated by the line XIV-XIV in Fig. XII.

These specific drawings and the specific description that follows merely disclose and illustrate the invention and are not intended to impose limitations upon the claims.

The weighing scale illustrated in Fig. I is of the box type being equipped with a commodity platter Ii] which is located above its housing H and having a chart i2 located in the interior of the housing ll. This scale is shown with its indicating means located in position to permit the chart to be viewed from an elevation above its axis and the general level of the scale.

The weighing scale illustrated in Fig. II is of the short column type being equipped with a commodity platter Ilia and a chart housing Ha enclosing a chart Ilia and mounted atop a short columnar housing Isa. This scale is provided with indications on opposite sides of its housing which are designed for reading from a point substantially on the plane of the chart axis.

The scale illustrated in Fig. III is of the so called high column type having a commodity platter [db and a chart housing lib, enclosing a cylindrical chart 12b and mounted on top of a high columnar housing l3b. This scale is shown as designed to be read from a level below the level of the chart axis.

The scales shown in these three figures merely illustrate three of the many styles and types of cylinder scales with which charts embodying the invention are adapted to be employed. Further variations in the directions from which the indications can be read easily can be provided through the use of interchangeable chart housing covers having their reading apertures in the desired positions.

Fig. IV illustrates one type of customer weight indication in which the customers weight indicia borne by the chart are visible through a bezel 14 located on the customers side of the chart housing near one end of such housing.

Fig. V illustrates another type or" customer weight indication where the customers weight indicia borne by the chart are visible through a bezel Ma located on the customers side of the chart housing but at the longitudinal center thereof instead or" near one of its ends.

Fig. VI shows one form of chart assemblage embodying the invention which is adapted to be employed with the type of customers weight indication shown in Fig. IV. This chart assemlage comprises a chart shaft I5 on which may be secured a pinion 8 driven by the load counterbalancing mechanism of the scale (not shown) A narrow cylindrical chart 1'. carries a series of customer weight indicia l3 and is supported on the shaft 55 by means of a spider is (see also Fig. X). he remainder of the chart I2 is a longer merchants weight and value indicating chart 2% which carries a series of merchants weight indicia 2i and a plurality of peripherally extending parallel rows of amount indicia 22. The chart is supported on the shaft l5 by means of at least two

chart spiders

23 and 24, one of which is located at each end of the chart 2%.

Each of the chart spiders l9 and 23 has a plurality of arcuate slots 25 (see Fig. IX) cut in its arms so that when the spiders are placed on the shaft 5 5 adjacent each other the slots overlap.

u h each of the pairs of overlapping slots there may be inserted a positioning bolt 28 which can be loosened to permit the two charts to be rotated on the shaft 45 relative to each other and tightened to hold the charts in place thereon. (It is preferred that the chart spider 23 be secured to the shaft and chart spider 29 be freely rotatable thereon held in position only by the bolts 25, as shown in Fig. X).

Therefore, 1' gardless of the relative position of the oust rs and merchants sighting lines (5110 and in the various figures) the cl ts may be rotated relative to each other COil'GCtly to posi 1 the zero indicia of each of the series l with respect to the other and to the sighting Fig. X illustrates a lilar construction but of a cha t to be employed with the customers weight indicating means located as shown in Fig. V. I this construction the meraants chart is lded into two cylinders 21 and the customers chart is located there- 'ween. Each of the merchants charts 2'! and is supported on the shaft it? by a pair of suporting spide" T merchants weight indicia,

'- l, is on the chart 2'! and the h CllCld bSEillll chart lid is secured thereto. As can be seen in Fig. XI a customers chait spider a merchants chart spider 23c. and a merchants chart spider 24a are located at the center of the chart adjacent each other. The two

spiders

19a and 23a are constructed as shown in Fig. IX and the two charts supported thereby are rotatable on the shaft being secured in the proper positions with respect to each other by a plurality of positioning bolts.

The embodiment of the invention illustrated in Fig. VIlI comprises a merchants chart 29 which extends the full length of the shaft l 5 and which has an annular depression 30 around its periphery in line with a customers weight indicating means of the type illustrated in Fig. V. A customers weight indicia chart llb, which is made in the shape of a long strip, lies in the annular depression 30. A plurality of slots 3! are out through the chart 29, extending longitudinally the full width of the annular depression 30, and being spaced around the circumference of the chart in various positions. Depending upon the relationship between the customers weight indicating chart I lb and the merchants chart 29 which it is desired to establish, the two ends of the chart l'lb are inserted through one of the slots 3| and crimped over inside the chart 29 to hold the chart Ill) in place within the annular depression 30.

In all of the modifications of the invention illustrated the various relative positions between the customers and merchants charts may all be provided for by the use of a single customers chart and a single merchants chart (all of them being constructed according to the modification of the invention employed). Therefore, regardless of the type or style of cylinder scale which is being manufactured the two charts can be assembled therein in the proper relationship to aiiord correct indications from both sides of the scale in accordance with the desired relationship between the sighting lines of the merchant and of the customer.

The embodiments of the invention which have been disclosed may be modified to meet various requirements.

Having described my invention, I claim:

1. A substantially cylindrical chart for use in any or" a series of generally cylindrical chart housings for weighing scales for use on counters, each of said housings being provided with customers and merchants indica viewing openings disposed at various relative positions to accommodate differences in counter elevation, said chart comprising a merchants indicia bearing portion carried on spiders from a shaft rotatable in response to loads being weighed and a customers indicia bearing portion carried on a spider supported by and rotatably adjustable with respect to a spider of said merchants indicia bearing portion of said chart, whereby said chart may be selectively conditioned for use in any one of said series of housings regardless of the angular disposition of the indicia viewing openings.

2. An indicia bearing chart for use in counter type weighing scales, each of the scales having housings in which merchants and customers indicia viewing windows are variously positioned according to the probable viewing angles of the observers, in combination, as index in the field of view of each window, said indexes being variously positioned with respect to each other according to the positions of the windows, and a cylindrical chart arrangeable within any one of the housings and rotatable in response to loads being weighed, the chart comprising a merchants indicia bearing portion carried on spiders from a rotatable shaft driven by weighing mechanism, and a customers indicia bearing portion carried on an independent spider supported by and rotatably adjusted with respect to one of the spiders supporting the merchants indicia bearing portion according to the spacing of the merohants and customers indexes to secure correspondence of indication.

3. An indicia bearing chart for use in counter type weighing scales, each of the scales having housings in which merchants and customers indicia viewing windows are variously positioned according to the probable viewing angles of the observers, in combination, an index in the field of View of each window, said indexes being variously positioned with respect to each other according to the positions of the windows, and a cylindrical chart arrangeable within any one of the housings and rotatable in response to loads being weighed, the chart comprising a main portion bearing merchants indicia, which portion is carried on spiders mounted on a shaft rotatable in response to loads being weighed, and a minor portion bearing customers indicia, which minor portion is carried by said major portion and is rotatably adjustable with respect thereto to position corresponding indicia in registration with their respective indexes.

HENRY KENDALL LEONARD.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 2,063,715 Wiley Dec. 8, 1936 1,012,343 Emanuel Dec, 19, 1911 674,883 Smith May 28, 1901 1,411,357 Hornbostel Apr. 4, 1922 2,230,161 Levkovitsch Jan. 28, 1941